Hose clamp



U. H. HILL.

HOSE CLAMP.

APPLICATION FILED DEC.I3, 1921. 1,408,507. Patented Mar. 7,1922.

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ULYSSES n. HILL, or saw ANTONIO, arms.

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Specification of Letters Patent.

Application filed December 13, 1921. Serial No. 522,104.

To all whom it may concern:

Be it known that I, ULYSSES HILL, a citizen of the United States,residing at San Antonio, in the county of Bexar and State of Texas, haveinvented certain new and useful Improvements in Hose Clamps, of whichthe following is a specification.

My invention relates to hose couplings and more particularly todetachable hose couplings for coupling a flexible tube or hose to arigid or metallic pipe; and the object 1s to provide a device of thischaracter which will not tear or cut the flexible tube 'or hose butgrip. the hose and clamp the same against the metal pi e.

Another 0 ject is to provide means which tighten on the hose and beretained by riction and which will autoy matically release the hose whenthe clamping devices are reversed. Another object is to provide aclamping device Wl'llCh can be manufactured at small cost and which canbe easily installed and which will securely hold the hose in engagementwith the metal pipe. Other objects and advantages w1ll be ully explainedin the following description and the invention will be more particularlypointed out in the claims.

Reference is had to the accompanying drawings which form a part of theapplication.

Fig. 1 is a cross-section of a hose clamp andthe hose and the metallicpipe, showing a side view of the locking means applied thereto. sectionof a hose and the clamp applied to the end of a metal pipe. Fig. 3 is adiamet rical or longitudinal section of a clamp, showing a variation inthe interior contour of the channel. Fig. 4 is a similar section, aclamp without an interior channel. ig. 5 is a similar section, showing aclamp without an interior channel and showing a fiat interior face. Fig.6 is a similar section, showing a variation in the interior face of theclamp. Fig. 7 shows a locking strip lying flat and showing the endthereof serrated or made rough to make the strip hold. by friction. Fig.8 shows the locking means in the form of awire with the end thereofserrated or made rough. Fig. 9 shows the locking strip with a gradual taer so that the locking strip will vhave a we ge effect. Fig. 10 shows alocking strip with the ends cut-away so that the ends will interlookwithin the channel of the hose clamp.

Fig. 2 is a broken' longitudinal Fig. 1 1 is a similar view, showing howthe str1p, 1n addition to the lapping ends laterally, may have a lap inportion on the outs de of the part w ic engages the hose. Big. 12illustrates a variation, showing the Patented Mar. '7, 1922.

receiving slit may be dispensed with and the locking strip inserted onthe side of the hose clamp. k

S milar characters. of reference are used to mdlcate the same partsthroughout the several views;

The drawings show the end of a pipe 1 which is ordinarily of metal. Theend of a hose pipe 2 is shown engaging the end of channel 5 on theinterior thereof to receive the looking or binding strip 4. The collaror band 3 has an aperture 6 to receive the lockmg or bindin stri 4. Thelocking strip may be force in the channel in any suitable manner- Thepart of the band or collar 3 about the opening 6 is beveled or under-cutso that the strip 4 may be readily started under the collar in thechannel 5. The locking strip may be forced into the channel and aboutthe hose or the strap may be fed in and the hose turned within thecollar to draw the locking strip around with thehose until enough of thelocking strip has been wound on the hose under the collar to lock theclamp on the hose. The locking strip may be manifolded on itself withinthe channel until the clamp locks the hose to the metal pipe. The clampmay be released by turning the hose 1n the opposite direction from thedirection used when the clamp is locked on the hose. The looking orbinding strip 4 may be made of any suitable material and the collar orband 3 may be made of any suitable material. The end 7 of the lockingstrip 4 maybe milled or serrated to make the same rough to secure therequisite friction to make the stri lock securely.

ig. 3 shows a looking or binding strip provided witha convex wall at thebottom of the channel so that pressure will be relieved from the edgesof the locking strip the pipe 1. The clamping means are in two 1 withouta channel on the inside and show variations in the interior contour ofthe band or collar, all having the same object-in'binding the lockingstrip on the hose.

ig. 8 shows a wire prepared with a serratedend to be used for the filleror binding or locking means.

Fig. 9 is an ed e view of. a locking or binding strip which is ta ringfrom end to end to have a wedging e ect when being placed in the band orcollar 3. Figs. 10 and 11 show a locking or binding strip which may bemade interlocking if preferred to accomplish the same results as areabove described. Instead of the aperture 6 in the collar 3, an offset 8may be formed on the side of the collar to lead to the interior channelof the collar. Various other changes in-the sizes, proportions,arrangement, and construction of the several parts may be made withoutdeparting from my invention.

What I claim, is,

- 1. A coupling for binding a flexible tube or hose to a rigid pipecomprising a collar or or hose to a rigid pi comprising a collar or ringmember provi ed with an aperture in the periphery thereof. and a lockinor gripping member inserted through sai aperture in said collar or ringmember and manifolded on itself about the hose or flexible tube to belocked.

3. A coupling for binding a flexible tube a or hose to a rigid pipecomprising a collar 'or ring member provided with an aperture pipe.

or gripping 4. A coupling for binding a flexible tube or hose to a rigidpipe comprising a collar or rin member provided with an interior channeand an opening leading to said channel and alocking or ripping memberinserted in said channel through said opening and wound on said hose andmanifolded on ltself and wedged between the bottom of said channel andsaid hose for clamping the hose on said pipe.

In testimony whereof, I set hand, this 3rd day of December 1921.

ULYssEs H. HILL.

